Masonry中遇到的一个的问题

2017-05-09 10:30:51.969437+0800 [35586:2135000] [LayoutConstraints] Unable to simultaneously satisfy constraints.

Probably at least one of the constraints in the following list is one you don't want. 

Try this: 

(1) look at each constraint and try to figure out which you don't expect; 

(2) find the code that added the unwanted constraint or constraints and fix it. 

(

    "",

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)

Will attempt to recover by breaking constraint 

Make a symbolic breakpoint at UIViewAlertForUnsatisfiableConstraints to catch this in the debugger.

The methods in the UIConstraintBasedLayoutDebugging category on UIView listed in may also be helpful.

由于使用的

mas_makeConstraints这个造成切换布局错误，建议使用

mas_updateConstraints，就行